Ubuntu 22.04 开启SSH

1.更新源

sudo apt update && sudo apt upgrade -y

2.安装SSH(OpenSSH)

sudo apt install openssh-server -y

3.使用systemctl启动SSH服务

sudo systemctl enable --now ssh

4.检查ssh状态

sudo systemctl status ssh

5.检查防火墙状态

sudo ufw status

6.防火墙放行SSH端口

sudo ufw allow 22